RailYatri is one of the source for train enquiry around Train Status, Time Table, to spot your train. You can even without looking outside of the train tell your co-travellers on where is your train based on GPS based train status.

The two key things which are important to be noted while checking Live Train Status are "Last Reported Location" and "Estimated Time of Arrival (ETA) at upcoming stoppages"

The "Last Reported Station" (for example - - at present for this train) signifies the station based on which the current live train running status of 12316 - UDAIPUR - KOLKATA CHITPUR Ananya SF Express is determined. The "Last Reported Station" also conveys that as per the current train status, the train has either arrived or departed or crossed that particular station. In this particular case, this instance of 12316 has departed -

The "Estimated Time of Arrival (ETA)" value conveys the expected time at which the trains is supposed to arrive at any of its upcoming stoppages like , . This is the time when the traveler at the upcoming stations is expected to be there to board the train.

The last reported station can be either a stoppage or an intermediate station (where the train does not have a regular stoppage and simply is expected to cross the station). Some examples of Intermediate Stations for 12316 - UDAIPUR - KOLKATA CHITPUR Ananya SF Express are , etc.

It is important to note that while running train status updates typically arrive from all the stoppages; it is not necessary that train status live updates will arrive from all the intermediate stations.

According to RailYatri, 90% of the live train status updates of the train from a particular station arrives with 8-10 mins of the train arriving/departing/crossing a station. For the remaining 10% of live train updates can range more than take more than that at times reaching to nearly an hour.

It has been observed that Indian train status updates associated for Express and higher category trains arrive on a faster manner than the train current running status live for Passenger category trains.

While tracking live running status please do remember that trains do recover time. So the train delay at the upcoming stoppages may be less than what current train running status has been reported from last reported station. Please plan accordingly. Train Running status live updates change frequently. So it is recommended that the user check the status updates frequently. Nearer to the estimated time of arrival, the train running status information becomes more and more accurate.

Train running status updates are much more accurate when it arrives from the GPS of the RailYatri app users.

Train status updates from the last stop (-) typically arrive in a delayed fashion.

12316 UDAIPUR - KOLKATA CHITPUR Ananya SF Express

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Fog is a common phenomenon in many Indian regions during the winter months. Due to a drop in temperatures, the water vapor condenses into tiny water droplets forming Fog. Fog can significantly reduce the visibility to less than 1 KM. As a running train needs high visibility to move at top speed, so trains are delayed due to fog.

Why are trains delayed due to fog?

There are various factors which contribute to delayed trains in Indian railways when there is fog around.The first factor is: Indian railways always gives a priority to passenger's safety over speed. So, when the
visibility is not adequate, the trains (under the mandate) run much slower than their average speed.Secondly, Indian railways signaling system depends largely on visibility rather than electronic communication. When there is fog around, the train drivers cannot see the signals. Thirdly, the anti-fog
technologies are still in the experimental stages and have not been implemented completely.

What are the ripple effects caused by fog train delays?

There are many parts of India, where fog is a non-entity. But that does not mean that train late status in these states is any better than the rest of India. This is due to the ripple effects of trains delayed due to fog.One has to understand that majority of rail tracks in India are double line, which means a train can pass through only if the earlier train vacates the route. When a train is delayed due to fog, it can affect the schedule of other trains along the same route. Secondly, Premium trains (such as Rajdhani, Duronto,
Shatabdi) enjoy the privilege of being provided the highest priority at signals. This again, impacts the delay of other trains.

What is the impact of fog on train cancellations?

A quick data analysis about fog train delays shows that as many as 2358 were canceled in 2016. And already 885 trains have been canceled within the first winter month of 2017. This is why it is essential for passengers to check if train is rescheduled or canceled prior to their journey.

How many trains are rescheduled due to fog?

Owing to huge delays and often unavailability of vacant tracks, there are many trains which have to be rescheduled during the fog infested months. 18,039 were rescheduled due to fog in 2016, and already 3,196 have been rescheduled in 2017. Before journeying in the winter months, do care to check the reschedule train status.